*Originally posted by Methanhydat, make sure to rate his guide.*

Install

1. Download the fix from PC Gaming Wiki here *download*[community.pcgamingwiki.com].
   
2. Extract the file dinput8.dll to the folder containing the executable of the game. ***\Steam\steamapps\common\FEAR Ultimate Shooter Edition
   
3. Start the game.

Uninstall

• Remove the file from the game folder.

This will also fix the same bug in different games using the same engine like Criminal Origins.

Go into the Start menu and right-click "Computer".
From there, go to "Device Manager" and choose "Human Interface Devices".
You are going to want to disable all "HID-Compliant Device", you should not need to disable ANYTHING else.
You might need to restart after doing this.

Note:
For the most part, these are used for the interfaces on the keyboards, which is why there is anywhere from 3-7, any applets will be disabled until these HID devices are re-enabled.


Have fun!